Children of the Sea

The heroine, Ruka, who was banned from taking part in the activities of her club during the summer vacation, meets a strange boy named Umi. She is fascinated by Umi, who she sees swimming freely in an aquarium, and finds out that he, along with Sora, was raised by a dugong. At that time a meteorite fell into the sea and all the fish disappeared from the world. The mystery of the sea deepens and the story spreads to encompass the life of the earth. Official English